[Django] #25639: Cascade deleting cause deadlock

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Django

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Oct 29, 2015, 11:45:45 PM10/29/15
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#25639: Cascade deleting cause deadlock
----------------------------------------------+-------------------------
Reporter: shellfly | Owner: nobody
Type: Bug | Status: new
Component: Database layer (models, ORM) | Version: 1.8
Severity: Normal | Keywords: db deadlock
Triage Stage: Unreviewed | Has patch: 1
Easy pickings: 0 | UI/UX: 0
----------------------------------------------+-------------------------
The `sort` method in `db.models.deletion` doesn't return a same order
every time. This can cause a deadlock when delete a model.

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Ticket URL: <https://code.djangoproject.com/ticket/25639>
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Django

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Oct 29, 2015, 11:58:15 PM10/29/15
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#25639: Cascade deleting cause deadlock
-------------------------------------+-------------------------------------
Reporter: shellfly | Owner: shellfly
Type: Bug | Status: assigned
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:

Keywords: db deadlock | Triage Stage:
| Unreviewed
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0

Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by shellfly):

* status: new => assigned
* needs_better_patch: => 0
* owner: nobody => shellfly
* needs_tests: => 0
* needs_docs: => 0


--
Ticket URL: <https://code.djangoproject.com/ticket/25639#comment:1>

Django

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Oct 30, 2015, 11:36:43 AM10/30/15
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#25639: Cascade deleting cause deadlock
-------------------------------------+-------------------------------------
Reporter: shellfly | Owner: shellfly
Type: Bug | Status: assigned
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:
Keywords: db deadlock | Triage Stage: Accepted

Has patch: 1 | Needs documentation: 0
Needs tests: 1 | Patch needs improvement: 0

Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by timgraham):

* needs_tests: 0 => 1
* stage: Unreviewed => Accepted


Comment:

May be related/duplicate of #24576.

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Ticket URL: <https://code.djangoproject.com/ticket/25639#comment:2>

Django

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Nov 19, 2015, 11:48:25 AM11/19/15
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#25639: Cascade deleting cause deadlock
-------------------------------------+-------------------------------------
Reporter: shellfly | Owner: shellfly
Type: Bug | Status: assigned
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:
Keywords: db deadlock | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by timgraham):

* needs_tests: 1 => 0


Comment:

[https://github.com/django/django/pull/5513 PR]

--
Ticket URL: <https://code.djangoproject.com/ticket/25639#comment:3>

Django

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Nov 19, 2015, 2:12:44 PM11/19/15
to django-...@googlegroups.com
#25639: Cascade deleting cause deadlock
-------------------------------------+-------------------------------------
Reporter: shellfly | Owner: shellfly
Type: Bug | Status: assigned
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:
Keywords: db deadlock | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1

Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by timgraham):

* needs_better_patch: 0 => 1


Comment:

The pull request has failing tests. Please uncheck "Patch needs
improvement" when they are fixed.

--
Ticket URL: <https://code.djangoproject.com/ticket/25639#comment:4>

Django

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Nov 21, 2015, 8:17:29 AM11/21/15
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#25639: Cascade deleting cause deadlock
-------------------------------------+-------------------------------------
Reporter: shellfly | Owner: shellfly
Type: Bug | Status: closed

Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution: duplicate

Keywords: db deadlock | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1

Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by shellfly):

* status: assigned => closed
* resolution: => duplicate


--
Ticket URL: <https://code.djangoproject.com/ticket/25639#comment:5>

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